<template>
  <div class="cart">
    <h4>全部商品</h4>
    <div class="cart-main">
      <div class="cart-th">
        <div class="cart-th1">全部</div>
        <div class="cart-th2">商品</div>
        <div class="cart-th3">单价（元）</div>
        <div class="cart-th4">数量</div>
        <div class="cart-th5">小计（元）</div>
        <div class="cart-th6">操作</div>
      </div>
      <div class="cart-body">
        <ul class="cart-list" v-for="cart,index in cartInfoList" :key="cart.id">
          <li class="cart-list-con1">
            <input type="checkbox" name="chk_list" :checked="cart.isChecked===1" @click="changeCartChecked(index,cart.isChecked)">
          </li>
          <li class="cart-list-con2">
            <img :src="cart.imgUrl">
            <div class="item-msg">{{cart.skuName}}</div>
          </li>
          <li class="cart-list-con4">
            <span class="price">{{cart.skuPrice}}.00</span>
          </li>
          <li class="cart-list-con5">
            <a class="mins" @click="reduce(index)">-</a>
            <input autocomplete="off" type="text" value="1" minnum="1" class="itxt" v-model="cart.skuNum">
            <a class="plus" @click="add(index)">+</a>
          </li>
          <li class="cart-list-con6">
            <span class="sum" v-text="cart_total(cart.skuPrice,cart.skuNum)"></span>
          </li>
          <li class="cart-list-con7">
            <a href="#none" class="sindelet" @click="cartdelete(index)">删除</a>
            <br>
            <a href="#none" >移到收藏</a>
          </li>
        </ul>
      </div>
    </div>
    <div class="cart-tool">
      <div class="select-all">
        <input class="chooseAll" type="checkbox" @click="CheckorNot" :checked='isallchecked'>
        <span>全选</span>
      </div>
      <div class="option">
        <a href="#none" @click="cartdeleteChecked">删除选中的商品</a>
        <a href="#none">移到我的关注</a>
        <a href="#none">清除下柜商品</a>
      </div>
      <div class="money-box">
        <div class="chosed">已选择
          <span>{{total_Num}}</span>件商品</div>
        <div class="sumprice">
          <em>总价（不含运费） ：</em>
          <i class="summoney">{{total_price}}</i>
        </div>
        <div class="sumbtn">
          <a class="sum-btn"  @click="goTrade">结算</a>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import {mapGetters} from 'vuex'
  export default {
    name: 'ShopCart',
    data(){
      return {
        skuNum:0,
      }
    },
    mounted(){
      this.getData()
    },
    computed:{
      ...mapGetters(['cartList']),
      cartInfoList(){
        return this.cartList.cartInfoList || []
      },
      total_Num(){
        let sum_num = 0
        this.cartInfoList.forEach(element => {
          sum_num+=element.skuNum
        });
        return sum_num
      },
      total_price(){
        let sum_price = 0
        this.cartInfoList.forEach(element => {
          sum_price+=element.skuNum*element.skuPrice
        });
        return sum_price
      },
      isallchecked(){
        let isallChecked = this.cartInfoList.every(item=>item.isChecked===1)
        return isallChecked
      },
    },
    methods:{
      cartdeleteChecked(){
        this.cartInfoList.forEach((item,index)=>{
          if(item.isChecked===1){
            this.cartdelete(index)
          }
        })
      },
      async cartdelete(index){
        try{
          await this.$store.dispatch('deletecart',{skuId:this.cartInfoList[index].skuId})
          this.getData()
        }catch(err){
          alert(err.message)
        }
      },
      async changeCartChecked(index,state){
        state = state==1?0:1
        this.cartInfoList[index].isChecked = state
        try{
          await this.$store.dispatch('cartchecked',{skuId:this.cartInfoList[index].skuId,isChecked:state})
        }catch(err){
          alert(err.message)
        }
      },
      CheckorNot(){
        if(this.isallchecked){
          this.cartInfoList.forEach(e=>{
            e.isChecked = 0
            this.$store.dispatch('cartchecked',{skuId:e.skuId,isChecked:e.isChecked})
          })
        }else{
          this.cartInfoList.forEach(e=>{
            e.isChecked = 1
            this.$store.dispatch('cartchecked',{skuId:e.skuId,isChecked:e.isChecked})
          })
        }
      },
      getData(){
        this.$store.dispatch('getCartList')
      },
      cart_total(price,num){
        return price*num
      },
      async reduce(index){
        if(this.cartInfoList[index].skuNum>0){
          this.skuNum = --this.cartInfoList[index].skuNum
          try{
            await this.$store.dispatch('AddOrUpdateShopCart',{skuId:this.cartInfoList[index].skuId,skuNum:-1})
          }catch(err){
            alert(err.message)
          }
        }
      },
      async add(index){
        this.skuNum = ++this.cartInfoList[index].skuNum
        try{
          await this.$store.dispatch('AddOrUpdateShopCart',{skuId:this.cartInfoList[index].skuId,skuNum:1})
        }catch(err){
          alert(err.message)
        }
      },
      goTrade(){
        this.$router.push({name:'trade'})
      }
    },
  }
</script>


<style lang="less" scoped>
  .cart {
    width: 1200px;
    margin: 0 auto;

    h4 {
      margin: 9px 0;
      font-size: 14px;
      line-height: 21px;
    }

    .cart-main {
      .cart-th {
        background: #f5f5f5;
        border: 1px solid #ddd;
        padding: 10px;
        overflow: hidden;

        &>div {
          float: left;
        }

        .cart-th1 {
          width: 25%;

          input {
            vertical-align: middle;
          }

          span {
            vertical-align: middle;
          }
        }

        .cart-th2 {
          width: 25%;
        }

        .cart-th3,
        .cart-th4,
        .cart-th5,
        .cart-th6 {
          width: 12.5%;

        }
      }

      .cart-body {
        margin: 15px 0;
        border: 1px solid #ddd;

        .cart-list {
          padding: 10px;
          border-bottom: 1px solid #ddd;
          overflow: hidden;

          &>li {
            float: left;
          }

          .cart-list-con1 {
            width: 15%;
          }

          .cart-list-con2 {
            width: 35%;

            img {
              width: 82px;
              height: 82px;
              float: left;
            }

            .item-msg {
              float: left;
              width: 150px;
              margin: 0 10px;
              line-height: 18px;
            }
          }

         

          .cart-list-con4 {
            width: 10%;

          }

          .cart-list-con5 {
            width: 17%;

            .mins {
              border: 1px solid #ddd;
              border-right: 0;
              float: left;
              color: #666;
              width: 6px;
              text-align: center;
              padding: 8px;
            }

            input {
              border: 1px solid #ddd;
              width: 40px;
              height: 33px;
              float: left;
              text-align: center;
              font-size: 14px;
            }

            .plus {
              border: 1px solid #ddd;
              border-left: 0;
              float: left;
              color: #666;
              width: 6px;
              text-align: center;
              padding: 8px;
            }
          }

          .cart-list-con6 {
            width: 10%;

            .sum {
              font-size: 16px;
            }
          }

          .cart-list-con7 {
            width: 13%;

            a {
              color: #666;
            }
          }
        }
      }
    }

    .cart-tool {
      overflow: hidden;
      border: 1px solid #ddd;

      .select-all {
        padding: 10px;
        overflow: hidden;
        float: left;

        span {
          vertical-align: middle;
        }

        input {
          vertical-align: middle;
        }
      }

      .option {
        padding: 10px;
        overflow: hidden;
        float: left;

        a {
          float: left;
          padding: 0 10px;
          color: #666;
        }
      }

      .money-box {
        float: right;

        .chosed {
          line-height: 26px;
          float: left;
          padding: 0 10px;
        }

        .sumprice {
          width: 200px;
          line-height: 22px;
          float: left;
          padding: 0 10px;

          .summoney {
            color: #c81623;
            font-size: 16px;
          }
        }

        .sumbtn {
          float: right;

          a {
            display: block;
            position: relative;
            width: 96px;
            height: 52px;
            line-height: 52px;
            color: #fff;
            text-align: center;
            font-size: 18px;
            font-family: "Microsoft YaHei";
            background: #e1251b;
            overflow: hidden;
          }
        }
      }
    }
  }
</style>